Home / 290,207,228.86-400,502,822.07-218,551,860.46

Finding the Fourth Proportional to 290,207,228.86, 400,502,822.07 and 218,551,860.46

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Solution

The fourth proportional to 290,207,228.86, 400,502,822.07 and 218,551,860.46 is: 301,614,254.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,207,228.86 : 400,502,822.07 = 218,551,860.46 : x
  2. Step 2: Convert to fraction form
    290,207,228.86/400,502,822.07 = 218,551,860.46/x
  3. Step 3: Cross multiply
    290,207,228.86x = 400,502,822.07 × 218,551,860.46
  4. Step 4: Simplify right side
    290,207,228.86x = 87,530,636,882,878,848
  5. Step 5: Solve for x
    x = 87,530,636,882,878,848/290,207,228.86
  6. Step 6: Final answer
    x = 301,614,254.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.